third_party/WebKit/WebCore/bindings/v8/custom/V8WorkerContextEventListener.cpp - Issue 46097: WebKit merge 41660:41709 (WebKit side)....

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Issue 46097: WebKit merge 41660:41709 (WebKit side).... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/

Patch Set: Created 11 years, 9 months ago

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1 /*

2 * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions are

6 * met:

7 *

8 * * Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.

10 * * Redistributions in binary form must reproduce the above

11 * copyright notice, this list of conditions and the following disclaimer

12 * in the documentation and/or other materials provided with the

13 * distribution.

14 * * Neither the name of Google Inc. nor the names of its

15 * contributors may be used to endorse or promote products derived from

16 * this software without specific prior written permission.

17 *

18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

29 */

30

31 #include "config.h"

32

33 #if ENABLE(WORKERS)

34

35 #include "V8WorkerContextEventListener.h"

36

37 #include "Event.h"

38 #include "WorkerContextExecutionProxy.h"

39

40 namespace WebCore {

41

42 V8WorkerContextEventListener::V8WorkerContextEventListener(WorkerContextExecutio nProxy* proxy, v8::Local<v8::Object> listener, bool isInline)

43 : V8ObjectEventListener(0, listener, isInline)

44 , m_proxy(proxy)

45 {

46 }

47

48 V8WorkerContextEventListener::~V8WorkerContextEventListener()

49 {

50 if (m_proxy)

51 m_proxy->RemoveEventListener(this);

52 disposeListenerObject();

53 }

54

55 void V8WorkerContextEventListener::handleEvent(Event* event, bool isWindowEvent)

56 {

57 // Is the EventListener disconnected from the frame?

58 if (disconnected())

59 return;

60

61 // The callback function on XMLHttpRequest can clear the event listener and destroys 'this' object. Keep a local reference to it.

62 // See issue 889829.

63 RefPtr<V8AbstractEventListener> protect(this);

64

65 v8::HandleScope handleScope;

66

67 v8::Handle<v8::Context> context = m_proxy->GetContext();

68 if (context.IsEmpty())

69 return;

70

71 invokeEventHandler(context, event, isWindowEvent);

72 }

73

74 v8::Local<v8::Value> V8WorkerContextEventListener::callListenerFunction(v8::Hand le<v8::Value> jsEvent, Event* event, bool isWindowEvent)

75 {

76 v8::Local<v8::Function> handlerFunction = getListenerFunction();

77 if (handlerFunction.IsEmpty())

78 return v8::Local<v8::Value>();

79

80 v8::Local<v8::Object> receiver = getReceiverObject(event, isWindowEvent);

81 v8::Handle<v8::Value> parameters[1] = { jsEvent };

82 v8::Local<v8::Value> result = handlerFunction->Call(receiver, 1, parameters) ;

83

84 m_proxy->TrackEvent(event);

85

86 return result;

87 }

88

89 v8::Local<v8::Object> V8WorkerContextEventListener::getReceiverObject(Event* eve nt, bool isWindowEvent)

90 {

91 if (!m_listener.IsEmpty() && !m_listener->IsFunction())

92 return v8::Local<v8::Object>::New(m_listener);

93

94 if (isWindowEvent)

95 return v8::Context::GetCurrent()->Global();

96

97 EventTarget* target = event->currentTarget();

98 v8::Handle<v8::Value> value = WorkerContextExecutionProxy::EventTargetToV8Ob ject(target);

99 if (value.IsEmpty())

100 return v8::Local<v8::Object>();

101 return v8::Local<v8::Object>::New(v8::Handle<v8::Object>::Cast(value));

102 }

103

104 } // namespace WebCore

105

106 #endif // WORKERS

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